Rubberlike condensation products



Patented Oct. 21, 1941 I UNITED STATES" PAT-ENT' OFF ICE min mums coifi mfig 'rron rnonuc'rs Heh'nut Jacobi and Walter Flemming, Ludwlgshafen-on-the-Rhine, Germany No Drawing. Application February 'No. 255,256. In Germany February '1 3 Claims. (01. 260-19) fused with 360 partsof phur has dissolved, 180 parts of water and 180' v parts of methanol The present invention relates to rubber-like condensation products. I A

-It is already known that highmolecular weight condensation products are iormed by the reac-' tion of alkali, ammonium ori'alkaline' arth pol'ysulphides with polyhalogen derivatives of aliphatic hydrocarbons. We have now found that. valuable rubber-like condensation products are obtained by reacting a water-soluble polysulphide, monium or alkaline earth polysulphide, with' allyl chloride. The reaction is carried out by heating the reaction mixture atrbetween 50 and 150? 0., preferably byfboiling under reflux cooling. It may, however, also be carried out in a closed vessel under increased pressure.- In the reaction there are formed at first viscoils products. These, when they. still contain unsaturatedlinkages, may be further polymerized ,by further heating at the t i. e. an alkali, am- 10,

of water, at 95 C.

a, 195.9. Serial sulphur. when the sulare added. While stirring con-' tinuously and with good reflux cooling, 235 parts of allyl chloride are slowly addedand the whole stirred for an hour at about 70 0., 250 partsof a mixture 0! methanol and water are then distilled oil.- The distillate has common salt added to it and the oil thus separated is returned to the reaction vessel. After the reaction mixture is kept for 5-hours while stirring continuously; There is thus formed a viscous brown mass which isstable V to organic solvents and oilsandis suitable for the reaction temperature tortsome hours, whereby an rubber-like products are formed. Therubberlike condensation productsmay also be provided with fillers, and'vulcanized after the: addition of sulphur. The resulting masses are distinguished by good stability to solvents and oils The following example will further-illustrate how this-invention may be carried out,in practice; but the invention is not restricted to this example. The parts ar'eb'yv weight.

Example being Obtained y the w 720 parts of. sodium sulphide (NaaSAiHzOY are preparation of shaped articles.

Whatwe claim is:

1. A process of producing rubber-like, condensation products which comprises heating a mixture of allylchloride and a water-soluble polysulflde until elastic condensation products of rubber-like character are formed.

-2. Rubber-like, condensation products of allyl chloride and a watersoluble polysulphide, said products being obtained by the method or claim 1'.

8. A compositional matter comprising a rub- --ber-like, condensation product of allyl chloride and-a watersoluble polysulphide vplcanized in the presence of sulphur, said condensation products method otclaim l,

JACOBI; WALTER. G.

adding 250 parts 

